REDWOOD CITY -- Police have identified the driver of an SUV that crashed into a Lexus on an Interstate 280 median Friday afternoon, killing three and injuring another.

The driver was G.A. Smith, 82, of San Jose, according to California Highway Patrol Officer Art Montiel.

Smith was driving a Volkswagen SUV northbound on the highway at a high rate of speed around 3:10 p.m. before swerving and crashing into the Lexus north of Edgewood Road for unknown reasons, according to the CHP.

"No one has been arrested at this time," Monteil said Saturday. "We're going to conclude the investigation, and then we'll decide what charges are applicable."

He said it did not appear that alcohol was a factor in the collision.

Killed in the crash were Manjit Kaur, 48; her son, Manpreet Singh, 28; and daughter, Jasdeep Kaur, 21, according to the San Mateo County coroner's office. Amarjit Singh Multani, 56, who was driving the Lexus before pulling over due to a flat tire, survived and was taken to Stanford Medical Center with moderate injuries.

Smith was taken to the same hospital with major injuries and underwent surgery Friday night, Montiel said.

"I do not know what his condition is," Montiel said.

Although all of the people in the Lexus shared the same Santa Clara address, Montiel said he was not sure whether Multani was related to the victims.

Any witnesses to the collision are asked to call Officer Brian Wester at 650-369-6261.